The influence of 12 years of tillage and crop rotation on total and labile organic carbon in a sandy loam soil

Soon, Y. K.; Arshad, Muhammad; Haq, Ansar ul; Lupwayi, Newton Z.

doi:10.1016/j.still.2006.10.009

Cited by 71 publications

(52 citation statements)

References 25 publications

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“…After the period of 1995-1996 when lucerne was cropped, basal respiration increased strongly in all variant regardless of treatment and similar situation repeated in the period of 2004-2005. Soon et al (2007 found the increased basal respiration under crop rotation with red clover as compared to the crop rotation without forage legumes.…”

Section: Basal Respiration Activitysupporting

confidence: 60%

“…Thus optimal balanced crop rotation involving forage legumes can improve organic carbon status in the soil. Soon et al (2007) who tested the influence of 12 years of four crop sequences on the organic C pools of a Grey Luvisolic sandy loam soil found increased total organic C content in the top 15 cm of soil in the red clover rotation compared to either the pea or fallow rotation. It was demonstrated that the farming practices lead to changes in SOM content.…”

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confidence: 99%

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The influence of long-term organic and mineral fertilization on soil organic matter

Šimon¹

2008

Soil & Water Res.

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Parameters evaluating soil organic matter quantity (organic C and N content) and quality (hot water extractable C content, aliphatic compounds, microbial biomass C content, basal respiration activity) were determined in soils differently fertilized (NPK -mineral fertilization 64.6 kg N/ha/year, FYM -farmyard manure 38.6 kg N/ha/year, FYM + NPK -103.3 kg N/ha/year) in long-term field experiment established in 1955 in Prague. Variant without any fertilization was used as a control. Nine years crop rotation (45% cereals, 33% root crops, 22% fodder crops) is practiced in this long-term experiment. Soil samples were taken from the arable layer (0-20 cm) in spring over the period of 1994-2004. Continual application of FYM and FYM + NPK increased the organic carbon content, hot water extractable C (HWC) content, aliphatic compounds content and microbial biomass C content significantly compared to control variant. Mineral fertilization (NPK) increased only organic C content significantly compared to control variant; HWC content, aliphatic compounds content and microbial biomass C content were increased not significantly. Basal respiration activity did not differ significantly between the variants but the influence of plants cropped in individual years on the basal respiration was observed. The total N content was increased significantly only in FYM + NPK variant as compared to control variant. Presence of lucerne in crop rotation contributed positively to the total nitrogen content in soil of all variants due to the symbiotic N 2 fixation. C:N ratio varied from 9.96 to 10.46. Significant positive relationships (r = 0.30 to 0.68; P < 0.05) among the all parameters were determined with exception of basal respiration activity. The most of measured characteristics tended to be constant or slightly increase in the period of observation that shows evidence of stability of this soil management system.

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Section: Basal Respiration Activitysupporting

confidence: 60%

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confidence: 99%

The influence of long-term organic and mineral fertilization on soil organic matter

Šimon¹

2008

Soil & Water Res.

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“…Although the amount of N contained in the straw can vary with crop type in individual years (Soon and Arshad 2005), the average straw N content (25Á 27 kg N ha (1 ) during this period (1998Á2001) was similar among the three crop types. Straw removal did not affect straw production or N uptake.…”

Section: Resultsmentioning

confidence: 87%

“…The LF is readily influenced by recent land use and Abbreviations: LF, light fraction; SOM, soil organic matter management practices such as tillage and crop rotations, and is more sensitive than the total organic matter content to those effects (Janzen et al 1992;Biederbeck et al 1994;Tan et al 2007). Incorporating barley (Hordeum vulgare L.) straw by disking resulted in higher LF C and N stocks in the soil than incorporation by ploughing, and removal of straw after harvest produced intermediate levels of LF C and N stocks after 10 yr (Soon 2007).…”

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confidence: 99%

Carbon and nitrogen contents of different-sized light fraction organic matter as influenced by tillage and residue management

Soon¹,

Haq²,

Arshad³

2009

Can. J. Soil. Sci.

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. 2009. Carbon and nitrogen contents of different-sized light fraction organic matter as influenced by tillage and residue management. Can. J. Soil Sci. 89: 281Á286. The light fraction (LF) has a variable elemental content because it comprises a pool of soil organic matter that is in transition between fresh residues and stable, humified organic matter. Our aim was to assess the influence of time, tillage (CT vs. NT) and straw management (removed or retained) practices on the C and N contents of two particle sizes of LF materials from a Gray Luvisol in Alberta. The LF C and N concentrations were not affected by tillage and straw treatments. The C concentration was higher in LF 1 mm (coarse LF) than in the B1 mm LF (fine LF), while the converse was observed for N concentration, resulting in C:N ratios of 45Á59 in the coarse fraction and 18Á19 for the finer materials. The C concentration of the fine LF decreased and the N concentration increased with time. After 4 yr, LF C and N stocks were higher under NT than under CT mainly because of faster decomposition of litter under CT. Retaining straw resulted in bigger increases in C and N stocks in the coarse LF compared with straw removal; with the fine LF, the C stock decreased more quickly and the N stock increased less rapidly with straw removal. Our results show that time strongly affected the LF C and N stocks and concentrations, and that separating the fraction by size can lead to a more meaningful interpretation of those data.Key words: Light fraction, carbon, nitrogen, tillage, crop residue, straw management Soon, Y. K., Haq, A. et Arshad, M. A. 2009.Incidence du travail du sol et de la gestion des re´sidus agricoles sur la teneur en carbone et en azote de la fraction le´ge`re de matie`re organique selon sa granulome´trie. Can. J. Soil Sci. 89: 281Á286. La concentration d'e´le´ments mine´raux dans la fraction le´ge`re (FL) varie, car cette fraction se compose de matie`re organique en transition entre l'e´tat de re´sidus frais et stables, et celui d'humus. Les auteurs souhaitaient e´valuer l'influence du temps, du travail du sol (comparativement au non-travail du sol) et de la gestion de la paille (suppression ou pas) sur la teneur en C et en N de la FL pre´sente dans un Luvisol gris de l'Alberta selon sa granulome´trie. La concentration de C et de N dans la FL n'est pas affecte´e par le travail du sol ni la gestion de la paille. La FL de plus de 1 mm (fraction grossie`re) renferme plus de C que la FL de moins de 1 mm (fraction fine), mais l'inverse est vrai pour le N, ce qui de´bouche sur un ratio C:N de 45 a5 9 pour la fraction grossie`re et de 18Á19 pour les mate´riaux fins. La concentration de C dans la fraction fine diminue dans le temps, alors que celle de N augmente. Apre`s quatre ans, les re´serves de C et de N dans la FL sont plus importantes dans les sols non travaille´s que dans ceux travaille´s, principalement a`cause de la de´composition plus rapide des de´bris ve´ge´taux. Laisser la paille sur le terrain accroıˆt les stocks de C et de N davantage d...

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“…Soon et al (2007), who tested the influence of 12 years of four crop sequences on the organic C pools in a Grey Luvisolic sandy loam soil, found increased total organic C content in the top 15 cm of soil in the red clover rotation compared with pea. It was demonstrated that the farming practices led to changes in the SOM content.…”

Section: Resultsmentioning

confidence: 99%

Arylsulphatase activity and sulphate content in relation to crop rotation and fertilization of soil

Siwik-Ziomek¹,

Lemanowicz²,

Koper³

2016

International Agrophysics

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A b s t r a c t. The aim of the study was to investigate the effect of varying rates of FYM (0, 20, 40, 60 Mg ha -1 ) and nitrogen N 0 , N 1 , N 2 , and N 3 on the content of sulphate sulphur (VI) and the activity of arylsulphatase, which participates in the transformations of this element in Haplic Luvisol. The study report is based on a long-term field experiment with two different crop rotations: A -recognized as exhausting the humus from soil and B -recognized as enriching the soil with humus. During the cultivation of the plants, the soil was sampled four times from corn and a red clover cultivar and grass. The FYM fertilization rate for which the highest arylsulphatase activity and the content of sulphates were identified was 60 Mg ha -1 . An inhibitory effect of high rates (90 and 135 kg N ha -1 ) of ammonium nitrate on the arylsulphatase activity was also observed. A significant correlation between the content of carbon, nitrogen, and sulphates and the arylsulphatase activity was recorded. The investigation on the effect of combined application of farmyard manure and mineral nitrogen fertilization on the activity of arylsulphatase participating in the sulphur cycling was launched to examine the problem in detail.

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The influence of 12 years of tillage and crop rotation on total and labile organic carbon in a sandy loam soil

Cited by 71 publications

References 25 publications

The influence of long-term organic and mineral fertilization on soil organic matter

The influence of long-term organic and mineral fertilization on soil organic matter

Carbon and nitrogen contents of different-sized light fraction organic matter as influenced by tillage and residue management

Arylsulphatase activity and sulphate content in relation to crop rotation and fertilization of soil

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